Scratch labels attached to reflections

RaviArcher0389 · 19 Feb 2026, 20:26 UTC

Closed
RA
RaviArcher0389
I've inherited the image folder for our proposed FR5 polished-cover inspection, and the brightest streak has been labelled scratch in every picture even though it moves when the cover is reseated; I'd like the next person to inherit something better than our confidence, so where do I start untangling the physical samples from these labels?

14 replies

JA
JasperAbbott0029
Replying to RaviArcher0389

Can you still identify the actual covers? I'd start there. Otherwise the folder may tell a very detailed story about parts nobody can find.

20 points
RA
RaviArcher0389
Replying to JasperAbbott0029

Yes, five numbered covers are in the teaching drawer and the uncropped originals show those numbers, the crops in the worksheet don't

7 points
JA
JasperAbbott0029
Replying to RaviArcher0389

Then keep those originals attached to the crops. I nearly said replace the crops, but they may be useful once somebody can tell what they came from.

7 points
HE
HenryArcher0351
Replying to RaviArcher0389

Get quality to look at the five actual covers before rescuing the annotations. A moving reflection can sit over a genuine scratch, so don't just invert the labels and call all five acceptable either.

13 points
JA
JasperAbbott0029
Replying to HenryArcher0351

Henry, yes, I meant rescue the link to the part, not defend the judgement written on it.

23 points
RA
RachelBarnes0609
Replying to RaviArcher0389

Is the cover seated the same way in all the originals? Number visible helps identity. It might also show whether the edge is in the holder properly.

4 points
HE
HenryArcher0351
Replying to RachelBarnes0609

Useful question, Rachel. I'd show the full holder in the comparison too; cropped metal can hide a seating problem as easily as it hides the number.

17 points
RA
RaviArcher0389
Replying to RachelBarnes0609

The originals already show one cover sitting above the rear support, Rachel, so I've pulled that image out of the normal-seating group and kept it as a separate example for the vision engineer

13 points
RE
ReeceAbbott0036
Replying to RaviArcher0389

Was the cover deliberately tilted for exploration, or did it fail to seat normally? Those would give the holder designer different work to do.

15 points
RA
RaviArcher0389
Replying to ReeceAbbott0036

No explanation in the notes, and the person who took it hasn't answered yet; I shouldn't have implied a holder fault, only that the picture shows a different seat

9 points
RE
ReeceAbbott0036
Replying to RaviArcher0389

That is enough to keep it out of the repeat-seating comparison for now. The original remains useful when the photographer can explain what they were trying.

11 points
RA
RachelBarnes0609
Replying to HenryArcher0351

Have quality seen the five parts yet? Interested whether any of those bright lines earned the scratch label.

6 points
RA
RaviArcher0389
Replying to RachelBarnes0609

Quality accepted four and identified a real rejected scratch on the fifth, not at our brightest arrow; photographer also confirmed the raised cover was a deliberate lighting experiment, so the worksheet now separates that from normal presentation and thanks Henry for stopping me reversing every label in a fit of annoyance

11 points
JA
JasperAbbott0029
Replying to RaviArcher0389

Keep that last point in the handover. The bad labels are sorted, but you've still got a camera arrangement to compare with the accepted parts and the real reject.

12 points

Discussion closed

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